On 2017 Feb 24, Ahmet Selçuk Can commented:

Correction: Evaluation of leptin and insulin resistance in patients with cholelithiasis

We would like to correct our mistakes in the above paper¹ (Atamer A, 2013) titled “Evaluation of leptin and insulin resistance in patients with cholelithiasis” published in the Indian Journal of Biochemistry & Biophysics. We tried to contact the Editor of the Indian Journal of Biochemistry & Biophysics via e-mail on September 15th 2015 and via surface mail on February 16th 2016, but we did not get a response. The reason probably is that the Indian Journal of Biochemistry & Biophysics is not active and its last issue was published in April 2015, before our effort to contact the Editor. There are errors in the abstract, text and Table 1 of the manuscript. We apologize for these errors. These errors were also present in another publication of Atamer et al.² (Atamer A, 2014) that derived data from the same subject group. We were alerted by a correspondence by Agilli et al.³ (Agilli M, 2014) that pointed to these errors. Those errors were addressed and corrected in a previously published letter⁴ (Atamer A, 2016) submitted by us. We now address our mistakes in the above paper¹ (Atamer A, 2013). Table 1 has the following errors. The mean age of the controls was 56.93 years and was significantly higher than subjects with cholelithiasis (p=0.016). There was an error in the calculation of LDL by the Friedewald formula in healthy controls; the correct calculation of LDL-C is 100.86 mg/dl for the healthy control group. AST level for the healthy control group was 30.00 IU/L. AST level for the cholelithiasis group was 25.48 IU/L. The mean AST level of control subjects was significantly higher than subjects with cholelithiasis (p<0.001). The mean GGT level for the healthy control group was correct and was 41.70 IU/L, but the mean GGT level of cholelithiasis subjects was 35.81 IU/L. The mean GGT level of control subjects was significantly higher than subjects with cholelithiasis (p=0.002). The following corrections need to be done in the text of the manuscript that pertains to the erroneous Table 1. The third sentence of the Abstract should be “The control group included 25 women (62.5%) and 15 men (37.5%) with a mean age of 56.93 ± 11.73 yrs.” The first two sentences of the Results Section should be as follows: “There were 55 women (68.8%) and 25 men (31.3%) with a mean age and standard deviation (SD) of 50.56 ± 14.28 yrs in the cholelithiasis group and 25 women (62.5%) and 15 men (37.5%) with a mean age and SD of 56.93 ± 11.73 yrs in the control group. There were no significant differences in terms of BMI, fasting blood glucose, TG, CRP and ALT levels between two groups (p>0.05), but control subjects were older and had higher AST and GGT levels compared to cholelithiasis subjects (p<0.05).” Biochemical parameters and ultrasound studies subsection under Materials and Methods Section, Results Section, Table 1 and Table 2 should indicate that CRP was measured as highly sensitive CRP (hsCRP). An Acknowledgements section should be added and should mention that part of the data was submitted to a different journal² Atamer A, 2014 and acknowledge the editing and submission assistance by Ahmet Selçuk Can (the third author of this letter). Aytaç Atamer and Yıldız Atamer are responsible from the integrity of the published data^1,2 Atamer A, 2013, Atamer A, 2014. Ahmet Selçuk Can is responsible from editing and submission of the previously published manuscripts^1,2 Atamer A, 2013, Atamer A, 2014 and writing and submission of this correspondence. We concur with Agilli et al.³ Agilli M, 2014 and accept that several errors make the previously published studies^1,2 Atamer A, 2013, Atamer A, 2014 unreliable⁴ Atamer A, 2016.

Aytaç Atamer^1,2 , Yıldız Atamer¹ and Ahmet Selçuk Can^1*

¹ Termal Vocational School, Yalova University, Kışla Caddesi, Gökçedere Mahallesi, Nergis Sokak, No: 23, Termal, Yalova, 77200, Turkey

² Formerly from the Division of Gastroenterology, Department of Internal Medicine, Republic of Turkey, Ministry of Health Haydarpaşa Numune Training and Research Hospital, Istanbul, Turkey

*Corresponding Author E-mail: selcukcan@endokrinoloji.com

References

1) Atamer A, Ovunc AO, Yesil A, Atamer Y. Evaluation of leptin and insulin resistance in patients with cholelithiasis. Indian J Biochem Biophys 2013;50:266-72.

2) Atamer A, Kurdas-Ovunc AO, Yesil A, Atamer Y. Evaluation of paraoxonase, malondialdehyde, and lipoprotein levels in patients with asymptomatic cholelithiasis. Saudi J Gastroenterol 2014;20:66-73.

3) Agilli M, Aydin FN, Aydin I. Serum paraoxonase and malondialdehyde levels in asymptomatic cholelithiasis. Saudi J Gastroenterol 2014;20:203-4.

4) Atamer A, Atamer Y, Can AS. Response to: Serum paraoxonase and malondialdehyde levels in asymptomatic cholelithiasis. Saudi J Gastroenterol 2016;22:84-5.

On 2017 Feb 24, Ahmet Selçuk Can commented:

Correction: Evaluation of leptin and insulin resistance in patients with cholelithiasis

We would like to correct our mistakes in the above paper¹ (Atamer A, 2013) titled “Evaluation of leptin and insulin resistance in patients with cholelithiasis” published in the Indian Journal of Biochemistry & Biophysics. We tried to contact the Editor of the Indian Journal of Biochemistry & Biophysics via e-mail on September 15th 2015 and via surface mail on February 16th 2016, but we did not get a response. The reason probably is that the Indian Journal of Biochemistry & Biophysics is not active and its last issue was published in April 2015, before our effort to contact the Editor. There are errors in the abstract, text and Table 1 of the manuscript. We apologize for these errors. These errors were also present in another publication of Atamer et al.² (Atamer A, 2014) that derived data from the same subject group. We were alerted by a correspondence by Agilli et al.³ (Agilli M, 2014) that pointed to these errors. Those errors were addressed and corrected in a previously published letter⁴ (Atamer A, 2016) submitted by us. We now address our mistakes in the above paper¹ (Atamer A, 2013). Table 1 has the following errors. The mean age of the controls was 56.93 years and was significantly higher than subjects with cholelithiasis (p=0.016). There was an error in the calculation of LDL by the Friedewald formula in healthy controls; the correct calculation of LDL-C is 100.86 mg/dl for the healthy control group. AST level for the healthy control group was 30.00 IU/L. AST level for the cholelithiasis group was 25.48 IU/L. The mean AST level of control subjects was significantly higher than subjects with cholelithiasis (p<0.001). The mean GGT level for the healthy control group was correct and was 41.70 IU/L, but the mean GGT level of cholelithiasis subjects was 35.81 IU/L. The mean GGT level of control subjects was significantly higher than subjects with cholelithiasis (p=0.002). The following corrections need to be done in the text of the manuscript that pertains to the erroneous Table 1. The third sentence of the Abstract should be “The control group included 25 women (62.5%) and 15 men (37.5%) with a mean age of 56.93 ± 11.73 yrs.” The first two sentences of the Results Section should be as follows: “There were 55 women (68.8%) and 25 men (31.3%) with a mean age and standard deviation (SD) of 50.56 ± 14.28 yrs in the cholelithiasis group and 25 women (62.5%) and 15 men (37.5%) with a mean age and SD of 56.93 ± 11.73 yrs in the control group. There were no significant differences in terms of BMI, fasting blood glucose, TG, CRP and ALT levels between two groups (p>0.05), but control subjects were older and had higher AST and GGT levels compared to cholelithiasis subjects (p<0.05).” Biochemical parameters and ultrasound studies subsection under Materials and Methods Section, Results Section, Table 1 and Table 2 should indicate that CRP was measured as highly sensitive CRP (hsCRP). An Acknowledgements section should be added and should mention that part of the data was submitted to a different journal² Atamer A, 2014 and acknowledge the editing and submission assistance by Ahmet Selçuk Can (the third author of this letter). Aytaç Atamer and Yıldız Atamer are responsible from the integrity of the published data^1,2 Atamer A, 2013, Atamer A, 2014. Ahmet Selçuk Can is responsible from editing and submission of the previously published manuscripts^1,2 Atamer A, 2013, Atamer A, 2014 and writing and submission of this correspondence. We concur with Agilli et al.³ Agilli M, 2014 and accept that several errors make the previously published studies^1,2 Atamer A, 2013, Atamer A, 2014 unreliable⁴ Atamer A, 2016.

Aytaç Atamer^1,2 , Yıldız Atamer¹ and Ahmet Selçuk Can^1*

¹ Termal Vocational School, Yalova University, Kışla Caddesi, Gökçedere Mahallesi, Nergis Sokak, No: 23, Termal, Yalova, 77200, Turkey

² Formerly from the Division of Gastroenterology, Department of Internal Medicine, Republic of Turkey, Ministry of Health Haydarpaşa Numune Training and Research Hospital, Istanbul, Turkey

*Corresponding Author E-mail: selcukcan@endokrinoloji.com

References

1) Atamer A, Ovunc AO, Yesil A, Atamer Y. Evaluation of leptin and insulin resistance in patients with cholelithiasis. Indian J Biochem Biophys 2013;50:266-72.

2) Atamer A, Kurdas-Ovunc AO, Yesil A, Atamer Y. Evaluation of paraoxonase, malondialdehyde, and lipoprotein levels in patients with asymptomatic cholelithiasis. Saudi J Gastroenterol 2014;20:66-73.

3) Agilli M, Aydin FN, Aydin I. Serum paraoxonase and malondialdehyde levels in asymptomatic cholelithiasis. Saudi J Gastroenterol 2014;20:203-4.

4) Atamer A, Atamer Y, Can AS. Response to: Serum paraoxonase and malondialdehyde levels in asymptomatic cholelithiasis. Saudi J Gastroenterol 2016;22:84-5.