Relationship between the Growth Hormone/Insulin-Like Growth Factor-I Axis, Insulin Sensitivity, and Adrenal Androgens in Normal Prepubertal and Pubertal Girls

The aim of this study was to analyze the possible implication of changes in the GH/IGF-I axis and in insulin sensitivity for the regulation of adrenal androgen secretion of normal prepubertal and adolescent girls. A total of 61 normal girls were evaluated in prepuberty [Group (Gr)1, n = 33; early (Gr1A, n = 16) and late (Gr1B, n = 17)]; puberty (Gr3, n = 28), early (Gr3A, n = 9) and late (Gr3B, n = 19); and during the transition between prepuberty and puberty (Gr2, n = 26). Insulin sensitivity was estimated by the fasting glucose/insulin ratio (G/I). In Gr1, G/I was significantly higher, and the mean serum IGF-I and serum dehydroepiandrosterone sulfate (DHEAS) were significantly lower than in Gr3 (P < 0.0001). Mean G/I in Gr1A and Gr3A was significantly higher than in Gr1B (P < 0.01) and Gr3B (P < 0.02), respectively, and ratios in Gr1B were also significantly higher than in Gr3A (P < 0.02). However, body mass index (BMI) in Gr1A, Gr1B, and Gr3A was not significantly different, although a significant increment was observed between late prepuberty (Gr1B) and late puberty (Gr3B; P < 0.0001). On the other hand, serum IGF-I levels in Gr1A and Gr3A were significantly lower than those in Gr1B (P < 0.01) and Gr3B (P < 0.02), respectively. The mean serum DHEAS level in Gr1A and Gr3A was significantly lower than in Gr1B (P < 0.01) and Gr3B (P < 0.02), respectively, and the level in Gr1B was also significantly lower than in Gr3A (P < 0.02). Correlation studies within Gr1, Gr2, and Gr3 were also performed. There was a significant positive correlation between serum DHEAS and age and a significant negative correlation between serum DHEAS and G/I in the three groups. However, a significant positive correlation between serum DHEAS and serum IGF-I was only found in Gr1. Furthermore, a significant negative correlation between BMI and the G/I was found in Gr2 and Gr3. Therefore, changes in insulin sensitivity might be involved in adrenal androgen synthesis both in prepuberty and in puberty, as well as during the transition from prepuberty to puberty. Changes in BMI suggest that adiposity might be a mediator of this effect, particularly during late puberty. On the other hand, the GH/IGF axis might be an important metabolic signal involved in the maturational changes of human adrenal androgens during prepuberty, at the time of adrenarche. Indeed, a significant negative correlation between G/I and serum IGF-I was found in Gr1, as well as in Gr2. In conclusion, the findings of this study indicate that the GH/IGF-I axis and insulin resistance might be involved in the mechanism of adrenarche during prepuberty in normal girls. Because these relationships had not been seen in boys, we proposed that prepubertal ovarian estrogens might be responsible for the sex difference. The relationship between insulin resistance and adrenal androgens persists during the transition from prepuberty to puberty, as well as during puberty.

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Morpho-Biochemical Characteristics of Brinjal Germplasms Affect the Abundance And Infestation of Jassid

SAARC Journal of Agriculture ◽

10.3329/sja.v19i1.54780 ◽

2021 ◽

Vol 19 (1) ◽

pp. 81-91

Author(s):

F Yasmin ◽

MR Amin ◽

M Afroz ◽

MAH Swapon ◽

MM Hossain

Keyword(s):

Protein Content ◽

Chlorophyll Content ◽

Negative Correlation ◽

Significant Positive Correlation ◽

Significant Negative Correlation ◽

Reducing Sugar ◽

Total Sugar ◽

The Other ◽

Biochemical Characteristics ◽

Positive Correlation

The tropical vegetable, brinjal is cultivated throughout the year in Bangladesh but the crop is infested by a number of insects including jassid. This study investigated the effects of different biophysical and biochemical characteristics of twelve brinjal germplasms on the abundance and infestation of jassid. The experiment was conducted during September 2018 to March 2019 in Gazipur, Bangladesh with twelve brinjal germplasms namely BD-7320, BD-7328, BD-9952, BD-10154, BD-10158, BARI Begun-1, BARI Begun-4, BARI Begun-5, BARI Begun- 6, BARI Begun-7, BARI Begun-8 and BARI Begun-9. The incidence of jassid was recorded from 3rd December to 26th March, and the lowest population was found on BARI Begun- 6. Among the biophysical traits, plant height, number of branch and leaf per plant, and leaf area exerted significant positive correlation; whereas trichome on lower and upper surfaces of leaf, spine per stem and leaf showed significant negative correlation with the abundance of jassid. On the other hand, moisture, reducing sugar, total sugar and protein content of the leaves and fruits, chlorophyll content of the leaves exerts significant positive correlation but ash and pH contents of the leaves and fruits were negatively correlated with the abundance of jassid. Jassids showed the lowest level of leaf infestation on BARI Begun-6, which could be for further analysis to develop jassid resistant brinjal. SAARC J. Agric., 19(1): 81-91 (2021)

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Relationship between the indexes of insulin resistance and metabolic status in dairy cows during early lactation

Acta veterinaria ◽

10.1515/acve-2017-0006 ◽

2017 ◽

Vol 67 (1) ◽

pp. 57-70 ◽

Cited By ~ 6

Author(s):

Marko Cincović ◽

Danijela Kirovski ◽

Ivan Vujanac ◽

Branislava Belić ◽

Radojica Djoković

Keyword(s):

Insulin Resistance ◽

Insulin Sensitivity ◽

Body Condition ◽

Negative Correlation ◽

Body Condition Score ◽

Metabolic Status ◽

Early Lactation ◽

Igf I ◽

Condition Score ◽

Linear Correlations

AbstractInsulin resistance is a phenomenon which accompanies the ongoing metabolic adaptation in cows during early lactation. The aim of our study was to determine the linear correlations of HOMA (Homeostatic Model Assessment), QUICKI (Quantitative Insulin Sensitivity Check Index) and RQUICKI (Revised Quantitative Insulin Sensitivity Check Index) indexes of insulin resistance with the metabolic status of cows (concentration of hormones, metabolites and body condition score). The experiment included 40 Holstein-Frisian cows in the first week after calving. Indexes of insulin resistance valued: 18.68±5.43 (HOMA), 0.39±0.06 (QUICKI) and 0.45±0.06 (RQUICKI). Linear correlations were examined by testing the coefficient of correlation (r), determination (r2,%) and regression parameter beta (b) in linear equation. A negative correlation was found between HOMA and IGF-I (insulin growth factor I) (r=−0.51, r2=25.0, b=−1.1257, p<0.01). HOMA showed a positive correlation with BHB (betahidroxybutyrate) (r=0.48, r2=23.2, b=0.0234, p<0.01). A positive correlation was found between QUICKI and IGF-I (r=0.30, r2=10.0 b=46.7900, p<0.05) and cholesterol (r=0.44, r2=18.3, b=1.9021, p<0.01). In contrast, QUICKI and BHB (r=0.51, r2=27.1, b=−1.7241, p<0.01), just like QUICKI and BCS (r=0.46, r2=20.9, b=−2.424, p<0.01), showed a negative correlation. RQUICKI showed positive correlations with IGF-I (r=0.48, r2=22.8, b=28.1230, p<0.01), T4 (r=0.47, r2=22.1, b=87.142, p<0.01) and triglycerides (r=0.36, r2=13, b=0.0407, p<0.05) but negative correlations with cortisol (r=−0.36, r2=13.0, b=−9.0332, p<0.05), STH (somatotropic hormone) (r=−0.42, r2=17.3, b=−5.4976, p<0.01), BHB (r=−0.62, r2=38.3, b=−1.1872, p<0.01), total bilirubin (r=−0.58, r2=33.7, b=−7.131, p<0.01) and BCS (body condition score) (r=−0.6, r2=36.4, b=−1.8347, p<0.01). In conclusion, indexes of insulin resistance may be used to evaluate the metabolic status of cows in early lactation. RQUICKI might be the most appropriate predictor of metabolic status due to its linear relationship with most of the parameters included in homeorhetic process.

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Correlation of Obesity Status with Zinc Serum Levels and Insulin Resistance in Perimenopause Obese Women

Diponegoro International Medical Journal ◽

10.14710/dimj.v1i2.9559 ◽

2020 ◽

Vol 1 (2) ◽

pp. 21-26

Author(s):

Heidi Listya

Keyword(s):

Insulin Resistance ◽

Negative Correlation ◽

Significant Positive Correlation ◽

Serum Zinc ◽

Significant Negative Correlation ◽

Obese Women ◽

Positive Correlation ◽

Obesity Status ◽

Zinc Levels ◽

Serum Zinc Levels

Abstract Background : Obesity is one of the global health problems. The prevalence of obesity in women is higher than men. Various metabolic problems are caused by obesity, such as insulin resistance and deficiency of micronutrients such as zinc. The occurrence of insulin resistance in obesity is also influenced by zinc deficiency.Objectives : To analyse the correlation of obesity status with serum zinc levels and insulin resistance in perimenopause obese women.Methods : Correlational research with 62 perimenopause obese women subject aged 40-50 years old who met the inclusion and exclusion criteria. Serum zinc levels were measurement using AAS and insulin resistance using HOMA IR formula. Serum zinc levels, fasting insulin, fasting blood glucose taken from venous blood. Hypothesis testing uses Pearson correlation.Results : 12.9% had low serum zinc levels and high HOMA IR 9.09%. There was a significant negative correlation between BMI with serum zinc levels (r = -0.402; p = 0.001) and significant positive correlation between BMI with insulin resistance (r = 0.396; p = 0.001). There was a significant negative correlation between WC with serum zinc levels (r = -0.18 , p = 0.161) and significant positive correlation between WC with insulin resistance ( r =0.284 , p =0.025 ). and significant negative correlation between serum zinc levels with insulin resistance (r = -0.404; p = 0.001).Conclusion : There is a correlation between obesity status with serum zinc levels and correlation between obesity status with insulin resistance in perimenopause obese women.

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Interaction among Nutritive, Textural, and Sensory Properties of Rabbit Sausages

Journal of Food Processing ◽

10.1155/2016/4059023 ◽

2016 ◽

Vol 2016 ◽

pp. 1-6 ◽

Cited By ~ 1

Author(s):

Joseph M. Wambui ◽

Edward G. Karuri ◽

Margaret M. M. Wanyoike

Keyword(s):

Negative Correlation ◽

Significant Positive Correlation ◽

Textural Properties ◽

Significant Negative Correlation ◽

Sensory Properties ◽

Mean Values ◽

Positive Correlation ◽

The Mean

The nutritive, textural, and sensory properties of commercial fresh rabbit sausages and their interactions were evaluated. The mean contents of moisture, protein, fat, ash, and carbohydrate were 43.89 ± 1.66%, 9.82 ± 2.71%, 22.37 ± 1.7%, 2.99 ± 0.10%, and 20.94 ± 3.05%, respectively. Conversely, the mean values of hardness, adhesiveness, springiness, cohesiveness, gumminess, and chewiness were 103.36 ± 3.48 N, −4.54 ± 1.58 N s, 3.38 ± 0.67 mm, 0.15 ± 0.03, 16.07 ± 3.20 N, and 55.73 ± 20.44 N mm, respectively. The moisture and protein contents showed significant negative correlation while three remaining nutritive properties showed significant positive correlation with textural properties (P<0.05 for all parameters). The score for nonparametric ranking of sensory properties like appearance/colour, flavour, juiciness, and tenderness ranged from 28.28 to 38.78, 29.41 to 35.91, 30.06 to 37.38, 26.75 to 40.69, and 29.03 to 36.75, respectively. In conclusion, rabbit sausages formulated with low quantities of moisture and protein result in hard sausages with low acceptability by sensory panellist. To improve the sausages, it is recommended that processors develop an optimal formulation.

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Correlation between geography and cytogenetic diversity in Pomegranate (Punica granatum L.) cultivars in Iran

Acta Botanica Brasilica ◽

10.1590/s0102-33062012000400025 ◽

2012 ◽

Vol 26 (4) ◽

pp. 953-965 ◽

Cited By ~ 1

Author(s):

Masoud Sheidai ◽

Sakineh Kolahizadeh ◽

Zahra Noormohammadi ◽

Nasim Azani ◽

Mehrnoosh Nikoo

Keyword(s):

Negative Correlation ◽

Chromosome Pairing ◽

Significant Positive Correlation ◽

Punica Granatum ◽

Significant Negative Correlation ◽

Annual Rainfall ◽

Positive Correlation ◽

Ring Bivalents ◽

The Mean ◽

Punica Granatum L

Pomegranate (Punica granatum L.) is an important horticultural plant with several cultivated forms planted in different regions of Iran. Due to its economic importance, studies have been carried out to illustrate the genetic diversity at the chromosomal and molecular levels in different pomegranate cultivars growing in this region. This study analyzed chromosome pairing and B-chromosomes of 21 pomegranate cultivars and tried to investigate the effects of geographical parameters like altitude and longitude as well as elevation and the mean annual rainfall on cytogenetic diversity of these taxa. An ANOVA test revealed the presence of a significant difference for chiasmata and chromosome pairing among the cultivars, indicating their genetic differences. A positive significant correlation was observed between total chiasma frequency and terminal chiasmata, intercalary chiasmata and the mean number of quadrivalents. A significant positive correlation was observed between annual rainfall and the mean number of rod bivalents, while a significant negative correlation was found for the number of ring bivalents. Altitude did not show any correlation with the cytogenetic characters studied, but showed a significant negative correlation with the number of univalents. Longitude showed significant positive correlation with the number of ring bivalents and a negative correlation with the number of univalents and intercalary chiasmata. PCA analysis showed that both geographical and cytological features contribute greatly in the diversity observed in the pomegranate cultivars. The occurrence of multipolar cells and unreduced pollen grains were observed in some of the cultivars.

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Concentration of calcium, zinc, magnesium, potassium and sodium in the bovine cervical mucus during normal oestrus and oestrus induced by progesterone and/or PGF2α

Reproduction Fertility and Development ◽

10.1071/rd02011 ◽

2002 ◽

Vol 14 (7) ◽

pp. 427 ◽

Cited By ~ 1

Author(s):

T. Tsiligianni ◽

A. Karagiannidis ◽

N. Roubies ◽

P. Saratsis ◽

P. Brikas

Keyword(s):

Negative Correlation ◽

Significant Positive Correlation ◽

Significant Negative Correlation ◽

Cervical Mucus ◽

The Other ◽

Positive Correlation ◽

Friesian Cows

Ninety-two healthy Friesian cows were used to determine the concentration of calcium (Ca), zinc (Zn), magnesium (Mg), potassium (K) and sodium (Na) in bovine cervical mucus and to compare these concentrations in cervical mucus collected during spontaneous and induced oestrus. Cows were assigned to four groups: (1) no treatment (2) PRID for 12 days plus pregnant mare's serum gonadotrophin (PMSG; 1000 IU, i.m.) at the removal of the PRID (3) PGF2α , two doses (6 mg, i.m.) 11 days apart, and (4) PRID for 7 days plus one dose of PGF2α (6 mg, i.m.) 24 h before removal of the PRID. The cows of the three induced-oestrus groups received two artificial inseminations (AI), whereas those in the spontaneous-oestrus group received only one. Cervical mucus samples were collected from all cows 5 to 30 min before the first AI. The results of this study can be summarized as follows: (1) viscosity was significantly lower (P<0.001) and crystallization was significantly (P<0.001) higher in the cervical mucus of cows in the spontaneous-oestrus group compared with cows in the induced-oestrus groups; (2)�Na concentration was similar in all groups; (3) concentration of all the other elements in the spontaneous-oestrus group was significantly lower (P<0.05) than in the induced-oestrus groups; (4) there was significant positive correlation (P<0.001) between viscosity and all elements, and significant negative correlation (P<0.05–P<0.001) between crystallization and all elements.

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The yield and nutrient content of colostrum and milk of women from giving birth to 1 month post-partum

British Journal Of Nutrition ◽

10.1079/bjn19840074 ◽

1984 ◽

Vol 52 (1) ◽

pp. 87-95 ◽

Cited By ~ 83

Author(s):

L. Saint ◽

Margaret Smith ◽

P. E. Hartmann

Keyword(s):

Milk Yield ◽

Negative Correlation ◽

Protein Concentration ◽

Significant Positive Correlation ◽

Post Partum ◽

Nutrient Content ◽

Significant Negative Correlation ◽

Similar Estimate ◽

Lactose Concentration ◽

The Mean

1. The intake of mammary secretion from delivery to day 5 post-partum was determined by test-weighing nine infants using an integrating electronic balance. The mean yield of colostrum for the first 24 h after birth was 37.1 (range 7.0–122.5) g and was 408 (range 98.3–775) and 705.4(range 452.5–876)g/24h on days 3 and 5 post-partum respectively.2. The milk yield of mothers on either day 14 or 28 post-partum was determined by test-weighing the mother. The mean milk yield was 1.156 (SD 0.167) kg/24 h.3. A significant correlation (P < 0.001; r 0.85, n 42) was found between milk yield measured by test-weighing the infant and milk yield measured by test-weighing the mother, confirming that it is possible to obtain a similar estimate of milk consumed using either of the two methods of test-weighing4. There was a significant positive correlation (P < 0.001) between lactose concentration and milk yield for the first 5 d post-partum (r 0.76, n 22); a significant negative correlation (P < 0.001) between protein concentration and milk yield (r – 0.74, n 22) and no significant correlation between fat concentration and milk yield for the period studied.5. The calculated energy intake of infants during the first 24 h after birth was only 0.12 (range 0.02–0.29) mJ. This increased to 1.44 (range 0.83–2.18) and 2.99 (range 2.49–4.06) mJ/24 h by days 3 and 14–28 post-partum respectively.

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Correlates of SARS-CoV-2 Variants on Deaths, Case Incidence and Case Fatality Ratio among the Continents for the Period of 1 December 2020 to 15 March 2021

Genes ◽

10.3390/genes12071061 ◽

2021 ◽

Vol 12 (7) ◽

pp. 1061

Author(s):

Wajdy J. Al-Awaida ◽

Baker Jawabrah Al Hourani ◽

Samer Swedan ◽

Refat Nimer ◽

Foad Alzoughool ◽

...

Keyword(s):

Negative Correlation ◽

Significant Positive Correlation ◽

Vaccine Development ◽

Case Fatality ◽

Significant Negative Correlation ◽

Reference Sequence ◽

Genome Sequences ◽

Positive Correlation ◽

Case Fatality Ratio ◽

Epidemiological Surveys

The outbreak of coronavirus disease 2019 (COVID-19), by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has quickly developed into a worldwide pandemic. Mutations in the SARS-CoV-2 genome may affect various aspects of the disease including fatality ratio. In this study, 553,518 SARS-CoV-2 genome sequences isolated from patients from continents for the period 1 December 2020 to 15 March 2021 were comprehensively analyzed and a total of 82 mutations were identified concerning the reference sequence. In addition, associations between the mutations and the case fatality ratio (CFR), cases per million and deaths per million, were examined. The mutations having the highest frequencies among different continents were Spike_D614G and NSP12_P323L. Among the identified mutations, NSP2_T153M, NSP14_I42V and Spike_L18F mutations showed a positive correlation to CFR. While the NSP13_Y541C, NSP3_T73I and NSP3_Q180H mutations demonstrated a negative correlation to CFR. The Spike_D614G and NSP12_P323L mutations showed a positive correlation to deaths per million. The NSP3_T1198K, NS8_L84S and NSP12_A97V mutations showed a significant negative correlation to deaths per million. The NSP12_P323L and Spike_D614G mutations showed a positive correlation to the number of cases per million. In contrast, NS8_L84S and NSP12_A97V mutations showed a negative correlation to the number of cases per million. In addition, among the identified clades, none showed a significant correlation to CFR. The G, GR, GV, S clades showed a significant positive correlation to deaths per million. The GR and S clades showed a positive correlation to number of cases per million. The clades having the highest frequencies among continents were G, followed by GH and GR. These findings should be taken into consideration during epidemiological surveys of the virus and vaccine development.

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Evaluation of serum adropin and irisin levels and its association with anthropometric obesity indices and biochemical parameters in Type 2 diabetic patients

Nutrition and Healthy Aging ◽

10.3233/nha-200110 ◽

2021 ◽

pp. 1-8

Author(s):

Foad Alzoughool ◽

Huda Al Hourani ◽

Manar Atoum ◽

Sajedah Bateineh ◽

Hanan Alsheikh ◽

...

Keyword(s):

Negative Correlation ◽

Biochemical Parameters ◽

Significant Positive Correlation ◽

Glycosylated Hemoglobin ◽

Significant Negative Correlation ◽

Diabetic Patients ◽

Positive Correlation ◽

Obesity Indices ◽

Group Serum

BACKGROUND/AIM: The newly described proteins adropin and irisin are a highly conserved polypeptide that plays essential roles in metabolic and energy homeostasis, insulin resistance, and fat browning. The aim of this study is to evaluate the circulating levels of serum adropin and irisin in type 2 diabetes mellitus (T2DM) patients and also to elucidate possible relationships between serum adropin and irisin levels with anthropometric obesity indices and biochemical parameters. SUBJECTS AND METHODS: Single-center prospective observational study included 90 T2DM patients referred to the diabetes outpatient clinic. Height, weight, and waist circumference (WC) were measured. Body mass index (BMI) and waist to height ratio (WHtR) were calculated. Fasting blood glucose, glycosylated hemoglobin, serum lipids, creatinine, urea, and blood urea nitrogen were evaluated. Estimated glomerular filtration rate (GFR) was calculated, serum adropin and irisin were evaluated. RESULTS: The results showed a significant positive correlation between adropin and irisin in females but not in males (r = 0.311; P = 0.042). In males’ group, serum adropin levels showed significant negative correlation with serum glucose (–0.423, P = < 0.05), HbA1C (–0.364, P = < 0.05), and GFR (–0.355, P = < 0.05). In contrast, creatinine was showed a significant positive correlation with adropin in males (0.381, P = < 0.05). In females’ group, adropin showed a significant negative correlation with weight (–0.371, P = < 0.05), BMI (–0.349, P = < 0.05), WC (–0.402, P = < 0.01), and WHtR (–0.398, P = < 0.01). Contrary, in males’ group, serum irisin levels showed significant positive correlation with weight (0.338, P = < 0.05), BMI (0.332, P = < 0.05), WC (0.409, P = < 0.01), and WHtR (0.432, P = < 0.01). CONCLUSION: This study demonstrated that, in T2DM patients, circulating serum adrpoin correlated negatively with anthropometric obesity indices of obesity in females, while serum irisin was positively correlated with anthropometric obesity indices of obesity in males.

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Increased plasma kynurenine and its relationship to neopterin and tryptophan in Tourette's syndrome

Psychological Medicine ◽

10.1017/s0033291700037880 ◽

1996 ◽

Vol 26 (4) ◽

pp. 857-862 ◽

Cited By ~ 17

Author(s):

H. Rickards ◽

S. M. Dursun ◽

G. Farrar ◽

T. Betts ◽

J. A. Corbett ◽

...

Keyword(s):

Tourette Syndrome ◽

Negative Correlation ◽

Plasma Levels ◽

Significant Positive Correlation ◽

Significant Negative Correlation ◽

Healthy Controls ◽

Positive Correlation ◽

Control Value ◽

Cellular Immune ◽

Patient Value

SynopsisFasting plasma levels of tryptophan, kynurenine and the pteridines, neopterin and tetrahydrobiopterin were measured in seven patients with Gilles de la Tourette syndrome (GTS) and 10 healthy controls. Plasma kynurenine was significantly elevated in the GTS patients. The lowest patient value was higher than the highest control value. Values for tryptophan, neopterin and tetrahydrobiopterin were similar in TS patients and controls. However, in TS patients only, there was a significant negative correlation between tryptophan and neopterin and a significant positive correlation between kynurenine and neopterin when controlling for tryptophan. This finding indicates that activation of cellular immune processes is a possible explanation for the rise in plasma kynurenine.

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