scholarly journals Evaluation of BCL-2 and BAX Genes Expression in Hyperglycemia-Induced NIH Cells

2021 ◽  
Vol 5 (2) ◽  
Author(s):  
Sher Zaman
Keyword(s):  
Toxic Effect ◽  
Gene Expression Analysis ◽  
Type I ◽  
Type Ii ◽  
Nih3t3 Cells ◽  
Glucose Levels ◽  
Genes Expression ◽  
Bax Gene ◽  
Effect Of Glucose ◽  
Very High

The incidence of Diabetes Mellitus (DM) type I and type II is very high all over the world. Excessive glucose levels and failure of one’s body to produce or manage glucose, trigger diabetes. Glucose is known to be responsive to NIH3T3 cells as it alters the expression of a range of genes associated with inflammation and apoptosis. In this study, the toxic effect of glucose was evaluated on NIH3T3 fibroblasts. Cells (NIH3T3) were cultured in media (DMEM), supplemented with 10% FBS and 1% Penicillin-Streptomycin. MTT assay was performed to check the toxic effect of glucose. NIH3T3 cells were treated with high glucose (30mM) for 24 hours. Trizol was used to extract the RNA followed by PCR reactions for gene expression analysis. Glucose treatment for 24 hours, modulated the expression of BCL-2 and BAX genes. The expression of BCL-2 was reduced while a significant increase was noticed in the expression BAX gene. Our results illustrated that glucose has some toxic effects on NIH3T3 cells. Glucose induces apoptosis by upregulating BAX and down-regulating BCL-2 expressions.

scholarly journals Implications of Aerobic Exercises and Walking Parallel to Diabetes Medications on Diabetic Sportspersons

2021 ◽  
pp. 197-204
Author(s):  
Fehmida Ayub ◽  
Abida Naseer ◽  
Saeed Javed ◽  
Adnan Asghar ◽  
Abd Rahim Mohd Shariff ◽  
...  
Keyword(s):  
Aerobic Exercise ◽  
Blood Glucose Control ◽  
Daily Basis ◽  
Control Group ◽  
Type I ◽  
Type Ii ◽  
Glucose Levels ◽  
Spare Time ◽  
And Control ◽  
Experimental Group

Objective: Diabetes have a central contribution with type I or type II towards the healthy lifestyles of sportspersons. Aerobic exercise and daily walking stay them fit and control their glucose levels in their bloodstream. The aim of this study was to find out the effects of aerobic exercises and walk on the sportspersons of type I and II diabetes. Methodology: The existing research has experimental design itself wherein pre-tests and post-tests were employed to make sure the novelty of results. The data was collected from the diabetic sportspersons dividing them equally into control group (N-20) and experimental group (N-20). Both groups had type I (N-20) and type II (N-20) diabetic individuals. Aerobic exercise and walk protocol was applied for six weeks on experimental group, whereas, control group continued their routine activities. Afterwards, the data was collected through pre and post treatments and edited into SPSS (v-26). The collected data was analyzed through descriptive statistics using frequencies and percentages, whereas, T-test was applied to make the differences of pre and post treatments. Results: The findings has shown that aerobic exercises and walk decrease the higher levels of glucose in blood and enable to stable glycemic balance, weight loss maintenance, decrease insulin resistance, blood pressure decrease, and blood glucose control. Conclusion: The prominent differences were observed between control and experimental groups either type I or type II. It was concluded that the sportspersons may reduce the excessive glucose engaging in aerobic exercises and walk on daily basis rather than using medications. They should spend their happy lives and get rid of medications and insulin through spending their spare time using light exercises and maintain their glucose levels in blood as well.

Electroreception in Gymnotus carapo: pre-receptor processing and the distribution of electroreceptor types

2000 ◽  
Vol 203 (21) ◽  
pp. 3279-3287 ◽  
Author(s):  
M.E. Castello ◽  
P.A. Aguilera ◽  
O. Trujillo-Cenoz ◽  
A.A. Caputi
Keyword(s):  
Electric Fields ◽  
Electric Fish ◽  
Fish Tissue ◽  
Field Vector ◽  
The Body ◽  
Type I ◽  
Type Ii ◽  
Field Patterns ◽  
Different Types ◽  
Very High

This paper describes the peripheral mechanisms involved in signal processing of self- and conspecific-generated electric fields by the electric fish Gymnotus carapo. The distribution of the different types of tuberous electroreceptor and the occurrence of particular electric field patterns close to the body of the fish were studied. The density of tuberous electroreceptors was found to be maximal on the jaw (foveal region) and very high on the dorsal region of the snout (parafoveal region), decaying caudally. Tuberous type II electroreceptors were much more abundant than type I electroreceptors. Type I electroreceptors occurred exclusively on the head and rostral trunk regions, while type II electroreceptors were found along as much as 90 % of the fish. Electrophysiological data indicated that conspecific- and self-generated electric currents are ‘funnelled’ by the high conductivity and geometry of the body of the fish. These currents are concentrated at the peri-oral zone, where most electroreceptors are located. Moreover, within this region, field vector directions were collimated, constituting the most efficient stimulus for electroreceptors. It can be concluded that the passive properties of the fish tissue represent a pre-receptor device that enhances exafferent and reafferent electrical signals at the fovea-parafoveal region.

scholarly journals Evolution of Vitamin B2 Biosynthesis: 6,7-Dimethyl-8-Ribityllumazine Synthases of Brucella

2006 ◽  
Vol 188 (17) ◽  
pp. 6135-6142 ◽  
Author(s):  
Vanesa Zylberman ◽  
Sebastián Klinke ◽  
Ilka Haase ◽  
Adelbert Bacher ◽  
Markus Fischer ◽  
...  
Keyword(s):  
Brucella Abortus ◽  
Sequence Comparison ◽  
Vitamin B ◽  
Type I ◽  
Type Ii ◽  
Riboflavin Biosynthesis ◽  
Lumazine Synthase ◽  
Riboflavin Operon ◽  
Very High ◽  
Riboflavin Synthesis

ABSTRACT The penultimate step in the biosynthesis of riboflavin (vitamin B2) involves the condensation of 3,4-dihydroxy-2-butanone 4-phosphate with 5-amino-6-ribitylamino-2,4(1H,3H)-pyrimidinedione, which is catalyzed by 6,7-dimethyl-8-ribityllumazine synthase (lumazine synthase). Pathogenic Brucella species adapted to an intracellular lifestyle have two genes involved in riboflavin synthesis, ribH1 and ribH2, which are located on different chromosomes. The ribH2 gene was shown previously to specify a lumazine synthase (type II lumazine synthase) with an unusual decameric structure and a very high Km for 3,4-dihydroxy-2-butanone 4-phosphate. Moreover, the protein was found to be an immunodominant Brucella antigen and was able to generate strong humoral as well as cellular immunity against Brucella abortus in mice. We have now cloned and expressed the ribH1 gene, which is located inside a small riboflavin operon, together with two other putative riboflavin biosynthesis genes and the nusB gene, specifying an antitermination factor. The RibH1 protein (type I lumazine synthase) is a homopentamer catalyzing the formation of 6,7-dimethyl-8-ribityllumazine at a rate of 18 nmol mg−1 min−1. Sequence comparison of lumazine synthases from archaea, bacteria, plants, and fungi suggests a family of proteins comprising archaeal lumazine and riboflavin synthases, type I lumazine synthases, and the eubacterial type II lumazine synthases.

scholarly journals Diabetes Vs. Physical Exercise

2011 ◽  
Vol 18 (1) ◽  
pp. 3-9
Author(s):  
Barbara Raczyńska ◽  
Łukasz Zubik ◽  
Michał Jeliński
Keyword(s):  
Physical Exercise ◽  
Therapeutic Agent ◽  
Type I ◽  
Type Ii ◽  
Physiological Tolerance ◽  
Glucose Levels ◽  
Chronic Hyperglycemia ◽  
Active Life ◽  
Diabetes Type I ◽  
Control Exercise

Diabetes Vs. Physical ExerciseDiabetes is a disease affecting people of all races in the world, it can appear at any age. It is considered to be social disease due to the incidence and complications. It is a disease of complex etiology, classified as a metabolic disease with chronic hyperglycemia. It requires intensive hypoglicemizing therapy. There are two types of diabetes: type I and type II with different etiologies and varied clinical picture.In the case of prolonged illness serious complications develop, from which, however, the sick may be saved, on condition of the patient's absolute submission to the rigors of treatment. It is possible to live an active life and even practice sports. Extremely important in this case is the correct blood glucose, providing for adjusted glucose homeostasis, which is promoted by physical activity. Physical exercise can be an important therapeutic agent in treating diabetes, provided the criteria of its physiological tolerance are determined. It is vital that an individual approach to the patient is made, associated with the duration of the disease and existing complications. Patient education in monitoring patients' glucose levels is important, i.e. the efficiency in the implementation of individual insulin therapy and hyperglycemia or hypoglycemia self-prevention during and after physical exercise. Patients who decide to practice sport should find the optimal way to control exercise, and diet during and after exercise, then the sporting success is possible.

Heat-Etching with a Bullivant Type II Simple Freeze-Cleave Device

1970 ◽  
Vol 28 ◽  
pp. 106-107 ◽  
Author(s):  
Ronald S. Weinstein ◽  
N. Scott McNutt
Keyword(s):  
New Zealand ◽  
General Hospital ◽  
Massachusetts General Hospital ◽  
Type I ◽  
Type Ii ◽  
Collaborative Effort ◽  
Temperature And Pressure ◽  
The University

The Type I simple cold block device was described by Bullivant and Ames in 1966 and represented the product of the first successful effort to simplify the equipment required to do sophisticated freeze-cleave techniques. Bullivant, Weinstein and Someda described the Type II device which is a modification of the Type I device and was developed as a collaborative effort at the Massachusetts General Hospital and the University of Auckland, New Zealand. The modifications reduced specimen contamination and provided controlled specimen warming for heat-etching of fracture faces. We have now tested the Mass. General Hospital version of the Type II device (called the “Type II-MGH device”) on a wide variety of biological specimens and have established temperature and pressure curves for routine heat-etching with the device.

Labelling of non-A, non-B hepatitis infected chimpanzee hepatocytes with nuclease-gold conjugates

1984 ◽  
Vol 42 ◽  
pp. 250-251
Author(s):  
G. D. Gagne ◽  
M. F. Miller ◽  
D. A. Peterson
Keyword(s):  
Endoplasmic Reticulum ◽  
Experimental Infection ◽  
Uranyl Acetate ◽  
Type I ◽  
Cellular Injury ◽  
Type Ii ◽  
Tubular Structures ◽  
Type Iii ◽  
Type Iv ◽  
Infected Chimpanzee

Experimental infection of chimpanzees with non-A, non-B hepatitis (NANB) or with delta agent hepatitis results in the appearance of characteristic cytoplasmic alterations in the hepatocytes. These alterations include spongelike inclusions (Type I), attached convoluted membranes (Type II), tubular structures (Type III), and microtubular aggregates (Type IV) (Fig. 1). Type I, II and III structures are, by association, believed to be derived from endoplasmic reticulum and may be morphogenetically related. Type IV structures are generally observed free in the cytoplasm but sometimes in the vicinity of type III structures. It is not known whether these structures are somehow involved in the replication and/or assembly of the putative NANB virus or whether they are simply nonspecific responses to cellular injury. When treated with uranyl acetate, type I, II and III structures stain intensely as if they might contain nucleic acids. If these structures do correspond to intermediates in the replication of a virus, one might expect them to contain DNA or RNA and the present study was undertaken to explore this possibility.

Comparative surface and ultrastructural views of methylotrophic bacteria by TEM, STEM, SE, and freeze-etch electron microscopy.

1987 ◽  
Vol 45 ◽  
pp. 792-793
Author(s):  
T.A. Fassel ◽  
M.J. Schaller ◽  
M.E. Lidstrom ◽  
C.C. Remsen
Keyword(s):  
Cytoplasmic Membrane ◽  
Structural Features ◽  
Methylotrophic Bacteria ◽  
Type I ◽  
Type Ii ◽  
Membrane Complex ◽  
Oxidation Of Methane ◽  
Methane Oxidizing Bacteria ◽  
Wall Structures ◽  
Methylomonas Albus

Methylotrophic bacteria play an Important role in the environment in the oxidation of methane and methanol. Extensive intracytoplasmic membranes (ICM) have been associated with the oxidation processes in methylotrophs and chemolithotrophic bacteria. Classification on the basis of ICM arrangement distinguishes 2 types of methylotrophs. Bundles or vesicular stacks of ICM located away from the cytoplasmic membrane and extending into the cytoplasm are present in Type I methylotrophs. In Type II methylotrophs, the ICM form pairs of peripheral membranes located parallel to the cytoplasmic membrane. Complex cell wall structures of tightly packed cup-shaped subunits have been described in strains of marine and freshwater phototrophic sulfur bacteria and several strains of methane oxidizing bacteria. We examined the ultrastructure of the methylotrophs with particular view of the ICM and surface structural features, between representatives of the Type I Methylomonas albus (BG8), and Type II Methylosinus trichosporium (OB-36).

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