• Although the gene that encodes DHFR has been strongly conser

  2024-08-12

  

  Although the gene that encodes DHFR has been strongly conserved during evolution, subtle differences in the active sites of bacterial, human and parasite formyl have been exploited to develop DHFR inhibitors specific to particular pathogens 1, 3. For example, pyrimethamine and cycloguanil bind stro

• dna ligase Plant pathogenic fungi have caused a

  2024-08-12

  

  Plant pathogenic fungi have caused a lot of economic losses to agricultural production worldwide every year. It is necessary to develop an bio-sourced antifungal agent for agricultural use. Many researches have shown that the antifungal activity of quaternized chitosan derivatives is mainly affected

• The sequential behavioral approach used in the

  2024-08-12

  

  The sequential behavioral approach used in the present study reinforced the involvement of the BDNF/TRKB system in the effect of losartan. In mice with dampened BDNF expression, losartan was no longer able to exert antidepressant-like effects. Similar to what was observed after losartan treatment, t

• It has been reported that trehalose shows beneficial effects

  2024-08-12

  

  It has been reported that trehalose shows beneficial effects in a mouse model of several neurodegenerative diseases [21], [22], [23]. There are also reports showing that trehalose can improve the impaired cognitive and learning ability and reduced Aβ deposit in hippocampus of APP/PS1 transgenic mice

• Not all secondary metabolites or natural products can be

  2024-08-12

  

  Not all secondary metabolites or natural products can be fully synthesized due to their very complex structures that are too difficult and expensive on industrial scale. Hence, there is an urgent need to search for alternative remedies as naturally occurring biologically active secondary metabolites

• Epidermal growth factor EGF has been

  2024-08-12

  

  Epidermal growth factor (EGF) has been shown to increase the 12S-lipoxygenase mRNA level by about two-fold in human epidermoid carcinoma A431 cells [71]. This enzyme was shown to be of the platelet-type and associated with the microsomal fraction of the cells [71], [72]. A requirement for EGF recept

• These findings suggest that eventually

  2024-08-12

  

  These findings suggest that eventually more than one 12/15-lipoxygenase isoform may play a role in human atherosclerosis. Humans have two 12-lipoxygenases and two 15-lipoxygenases which show different expression patterns, substrate specificities and stereo-selective metabolism [1]. However, in lxr a

• br AHR mediates TCDD toxicity and wasting syndrome TCDD caus

  2024-08-12

  

  AHR mediates TCDD toxicity and wasting syndrome TCDD causes numerous toxicities in laboratory animals, including teratogenesis, hepatic steatosis, thymic atrophy, immune dysfunction and a lethal wasting syndrome [17]. The dose-dependent sensitivity to TCDD-induced toxicities varies widely among l

• br Impact of global AHR deficiency on diet

  2024-08-12

  

  Impact of global AHR deficiency on diet-induced obesity Two subsequent studies in which AHR function was affected at the whole animal level corroborated the role of AHR in dietary obesity. Xu et al. [14] showed that on a high-fat diet, both AHR-deficient Ahr−/− and hemizygous Ahr+/− mice gained s

• There are human genes in the SLC A family

  2024-08-12

  

  There are 12 human genes in the SLC5A family, and 6 of these are expressed in human heart (Table 2). Little is known about SGLT proteins in the heart. Zhou et al. [56] reported the presence of SGLT1 mRNA in the human heart. Researchers have found that levels of SGLT1 mRNA in heart are approximately

• Evodiamine It is well accepted that PKA is a key enzyme

  2024-08-12

  

  It is well accepted that PKA is a key enzyme activated at the beginning of the capacitation process [69]. As mentioned above phosphorylation/inactivation of cofilin in sperm is a PKA dependent process [58]. We could not see any change in cofilin phosphorylation level by adding the PKA activator 8Br-

• In order to investigate their effects in vitro

  2024-08-12

  

  In order to investigate their effects in vitro, therefore, we first used TE671 cells, which have provided a useful source of human AChR for in vitro and radioimmunoassay studies. We found no marked effect of either MuSK-MG or SNMG sera on AChR numbers or on AChR subunit expression. This appears to c

• br Materials and methods br

  2024-08-12

  

  Materials and methods Results Bilateral microinjections (n = 6) of 10 mM ACh (300–500 pmol) and 5 mM physostigmine (150–250 pmol) at the two selected caudal NTS sites caused within 1 min significant increases in respiratory frequency (from 54.5 ± 1.7 to 70.9 ± 4.1 breaths/min; +30.8 ± 7.0%; P 

• br LOX in esophageal cancer Various studies suggest

  2024-08-12

  

  5-LOX in esophageal cancer Various studies suggest that abnormal levels of AA metabolites play an essential role in human esophageal adenocarcinogenesis (EAC). The key AA derivatives of 5-LOX signaling molecules namely include, 5-HETE, LTB4, and cysteinyl LTs, which are well-known to initiate inf

• For both the hydroxylation and

  2024-08-12

  

  For both, the 17α-hydroxylation and 17, 20-lyase reactions, the heme iron center of P450 17A1 receives electron reducing equivalents from CPR. Both reactions require one pair of electrons and molecular oxygen for the conversion of the substrate into product in each catalytic cycle. However, the 17,2

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