Long-term and season-specific changes in the body concentrations of magnesium, potassium and calcium by means of quantitative analyses of beard samples collected every day: A case study

2019 ◽  
Vol 29 (01n02) ◽  
pp. 43-52
Author(s):  
K. Sera ◽  
S. Goto ◽  
T. Hosokawa ◽  
Y. Saitoh
Keyword(s):  
Seasonal Variations ◽  
Seasonal Changes ◽  
Potassium Concentration ◽  
The Body ◽  
Annual Variations ◽  
Single Person ◽  
Quantitative Analyses ◽  
Long Term Variations

More than 4000 beard samples were collected from a single person every morning over a 12-year period and analyzed using a standard-free method. We detected significant annual variations in the concentrations of magnesium and calcium in the study period, although significant monthly and seasonal variations were not noted. Calcium tends not to be obtained from season-specific foods or drinks, so its variations may be affected by changes in the metabolism of the body. In contrast, however, potassium showed marked long-term variations with significant seasonal differences. As our previous studies confirmed that green vegetables contain large quantities of potassium and that their supply and consumption increase from May to July, the seasonal variations in potassium concentration were attributed to the ingestion of green vegetables. Although magnesium is also contained in green vegetables in large quantities, its principle supply sources are diverse and its concentration did not show any clear seasonal changes.

Long-term and season-specific changes in the body concentrations of iron, copper, zinc, and selenium by means of quantitative analyses of beard samples collected every day — a case study

2021 ◽  
pp. 1950020
Author(s):  
K. Sera ◽  
S. Goto ◽  
T. Hosokawa ◽  
Y. Saitoh
Keyword(s):  
Eating Habits ◽  
Essential Element ◽  
The Body ◽  
Marine Products ◽  
Copper Zinc ◽  
Quantitative Analyses ◽  
Body Element ◽  
The Relationship

A total of 4269 beard samples were collected from the same person every day over a 12-year period and analyzed by PIXE using a standard-free method. It was found that the concentrations of copper and zinc showed certain short-term changes but did not show a noticeable long-term trend over the study period, with only iron showing a slightly decreasing tendency with age. All of these elements showed clear yearly variations with a cycle of a few years possibly due to periodic metabolic changes in the subject’s body or long-term changes in eating habits. In contrast, however, selenium showed clear seasonal variations. Its concentration significantly increased in the summer and decreased in the winter, just as was observed with arsenic and mercury. This suggests that most of the subject’s selenium intake was from marine products, whose supply and consumption were increased in the summer. These findings confirmed that beard analyses are useful not only for evaluating essential-element intake but also for estimating the relationship between the body-element concentrations and ingestion of certain foods.

scholarly journals A Case Study depicting Management of Diabetes Mellitus with Autologous Stem Cells

2017 ◽  
Vol 1 (1) ◽  
Keyword(s):  
Diabetes Mellitus ◽  
Stem Cells ◽  
Peptide Hormone ◽  
The Body ◽  
Anabolic Hormone ◽  
Main Culprit ◽  
Fat Liver

Diabetes mellitus type 2 is a long-term disorder of the metabolism characterized by elevated levels of sugar in blood, insulin resistance, and relative lack of insulin. Insulin is the main culprit for diabetes mellitus. Beta cells of the pancreatic islets are the producers of this peptide hormone which is considered to be the main anabolic hormone of the body regulating the carbohydrates, fats and protein metabolism by promoting the absorption of, especially, glucose from the blood into fat, liver and skeletal muscle cells. From this study, it seems that stem cell therapy can be a promising approach to manage the long term condition diabetes mellitus. The patients were administered stem cells derived from their bone marrows during the procedure. The levels of blood glucose and glycated hemoglobin (HbA1c) were decreased significantly post procedure in both the patients.

Long-term variation of characteristics of local land atmosphere coupling over TP and the possible influence of Southern Asian Monsoon

2021 ◽  
Author(s):  
Genhou Sun ◽  
Zeyong Hu ◽  
yaoming Ma ◽  
Zhipeng Xie ◽  
Wei Wei ◽  
...  
Keyword(s):  
Observational Data ◽  
Asian Monsoon ◽  
Energy Budgets ◽  
Annual Variations ◽  
Term Variation ◽  
Close Relationship ◽  
The Relationship ◽  
Diagram Analysis ◽  
Long Term Variations

<p>This study investigates the long-term variations of local land atmosphere coupling (LoCo) over Tibetan Plateau (TP) by applying a mixing diagram to the observational data at six stations over TP and ERA5 and the possible influence of Southern Asian monsoon. The result indicates that the monthly-mean daily variation in T<sub>2m</sub>, q<sub>2m</sub>, H<sub>sfc,</sub> and LE<sub>sfc</sub> at Nyingchi, Nagqu, Nam Co, Qomolangma, Ngari, and Muztagata in ERA5 are close to those in observational data. Comparison of mixing diagram analysis using the monthly-mean variables of ERA5 and the observational data indicates ERA5 could provide reliable information of LoCo at six stations. The relationships between H<sub>sfc</sub> and daytime PBLH, and the variations of LCL deficit at six stations are different due to the differences in the soil states. The long-term variations in the PBL energy budgets, mean daytime PBLH, and LCL deficits at 31<sup>◦</sup>N and 90<sup>◦</sup>E show clear annual variations and have a close relationship between Southern Asian monsoon. The possible influence of the Southern Asian monsoon is also discussed in terms of the relationship between the Webster-Yang index and the PBL energy budgets, mean PBLH and mean LCL over TP.</p>

scholarly journals Long-term variations in the neutral gas composition of the thermosphere over Norilsk (2003–2013)

2016 ◽  
Vol 2 (4) ◽  
pp. 92-97
Author(s):  
Галина Кузнецова ◽  
Galina Kuznetsova ◽  
Ольга Яковлева ◽  
Olga Yakovleva ◽  
Галина Кушнаренко ◽  
...  
Keyword(s):  
Seasonal Variations ◽  
Gas Composition ◽  
Ionospheric Layer ◽  
Neutral Gas ◽  
Different Seasons ◽  
Long Term Variations

Seasonal variations in relative values of the main gas components of the thermosphere [O]/[N2] and [O2]/[O] were received at the station Norilsk during the period 2003–2013. Estimates were made using a technique the authors developed and data from the Norilsk digisonde (69° N, 88° E) for heights below the ionospheric layer F1 maximum under quiet and disturbed geomagnetic conditions in different seasons. We established that the [O2]/[O] ratio in the quiet and disturbed geomagnetic conditions in all seasons by the end of 2013 decreased from 10 to 20 % relative to the values of 2003. The [O]/[N2] ratio for the same conditions increased to 17 %.

scholarly journals Long-term variations in the neutral gas composition of the thermosphere over Norilsk (2003–2013)

2017 ◽  
Vol 2 (4) ◽  
pp. 118-125
Author(s):  
Галина Кушнаренко ◽  
Galina Kushnarenko ◽  
Ольга Яковлева ◽  
Olga Yakovleva ◽  
Галина Кузнецова ◽  
...  
Keyword(s):  
Seasonal Variations ◽  
Peak Height ◽  
Gas Composition ◽  
Neutral Gas ◽  
Different Seasons ◽  
Layer Peak ◽  
Long Term Variations

Seasonal variations in relative values of the main gas components of the thermosphere [O]/[N2] and [O2]/[O] were obtained at the station Norilsk during the period 2003–2013. Estimates were made using a technique we devel-oped and data from the Norilsk digisonde (69° N, 88° E) for heights below the ionospheric F1-layer peak height under quiet and disturbed geomagnetic conditions in different seasons. We established that the [O2]/[O] ratio under quiet and disturbed geomagnetic conditions in all seasons by the end of 2013 decreased from 10 to 20 % relative to the values of 2003. The [O]/[N2] ratio for the same conditions increased to 17 %.

Effects of aldosterone on potassium distribution

1982 ◽  
Vol 243 (5) ◽  
pp. R526-R530
Author(s):  
D. B. Young ◽  
T. E. Jackson
Keyword(s):  
Potassium Concentration ◽  
Correlation Coefficients ◽  
Plasma Potassium ◽  
The Body ◽  
Electrolyte Balance ◽  
Potassium Intake ◽  
Independent Variable ◽  
Total Body ◽  
Total Potassium

To assess the effects of long-term changes in aldosterone on potassium distribution within the body, two groups of experiments were conducted. In the first, seven normal dogs received continuous infusion of aldosterone at a high physiological rate, 250 micrograms/day. Total exchangeable potassium (Ke) and plasma potassium concentration (KP) were measured before and 4 and 6 days after aldosterone infusion. KP fell by 20% while Ke decreased by 8% after 6 days of infusion; the ratio between extracellular and total body potassium had been altered by the aldosterone infusion. In the second study, 10 adrenalectomized dogs received aldosterone infusion first at 50 micrograms/day, then at 250 micrograms/day. While on each level of aldosterone infusion, three levels of potassium intake were given by iv infusion. When the animals were in electrolyte balance at each level of aldosterone and potassium (after at least 7 days on each level of infusion), Ke (expressed as meq/kg) and KP were measured. The two variables were plotted against each other, Ke being the independent variable. Data taken while the dogs received 50 micrograms/day aldosterone were described by the equation, KP = 0.100Ke + 0.055, while those obtained at 250 micrograms/day were fitted by the equation, KP = 0.057Ke + 1.30. The correlation coefficients for the two were 0.778 and 0.760, respectively. The regressions were significantly different at a level of P less than 0.02. Data from the two groups of experiments are consistent with the hypothesis that aldosterone alters the distribution of potassium between the intra- and extracellular spaces, a greater portion of total potassium being intracellular at higher levels of aldosterone.

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