Inclusion Criteria:

• Are between the ages of 18-75 years.
• Have clinical indications for whole sural nerve biopsy.
• Have a sural nerve SNAP with amplitude > or = 2 μV.
• Are able to comply with protocol requirements.
• Can provide written informed consent.
• Willingness to complete study procedures.

Exclusion Criteria:

• Current smoker.
• History of prior musculoskeletal (joint or soft tissue) infection.
• Pre-operative nares culture positive for methicillin-resistant Staphylococcus Aureus (MRSA) or methicillin-sensitive Staphylococcus Aureus (MSSA)
• Have systemic immune disorders, such as Crohn’s Disease, rheumatoid arthritis, or psoriasis with the exception of hyper/hypothyroidism.
• Have diabetes mellitus.
• Have previous trauma to the biopsy site.
• Have any major, clinically significant medical condition (e.g., within six months of baseline, had myocardial infarction, angina pectoris, and/or congestive heart failure) that, in the opinion of the investigator, would compromise the safety of patient.
• Any of the following because this study involves an investigational device of which the effects on pregnant women, the developing fetus and newborn are unknown:
  • Pregnant women.
  • Nursing women.
  • Men or women of childbearing potential (WOCBP) who are unwilling to employ adequatecontraception.
    • Note: WOCBP must agree to follow instructions for method(s) of contraception for the duration of the study, for 2 years following implantation of the device.
  • Males who are sexually active with WOCBP must agree to follow instructions for method(s) of contraception for the duration of the study, for 2 years following implantation of the device.
  • Azoospermic males and WOCBP who are continuously not heterosexually active are exempt from contraceptive requirements. However they must still undergo pregnancy testing as described in this section.
    • Note: Investigators shall counsel WOCBP and male subjects who are sexually active with WOCBP on the importance of pregnancy prevention and the implications of an unexpected pregnancy. Investigators shall advise WOCBP and male subjects who are sexually active with WOCBP on the use of highly effective methods of contraception. Highly effective methods of contraception have a failure rate of < 1% when used consistently and correctly.
• At a minimum, subjects must agree to the use of one method of highly effective contraception as listed below:
  • Male condoms with spermicide
  • Hormonal methods of contraception including combined oral contraceptive pills, vaginal ring, injectables, implants and intrauterine devices (IUDs) such as Mirena® by WOCBP subject or male subject’s WOCBP partner.
  • Female partners of male subjects participating in the study may use hormone based contraceptives as one of the acceptable methods of contraception since they will not be receiving study drug.
  • IUDs, such as ParaGard®.
  • Tubal ligation.
  • Vasectomy.
  • Complete Abstinence*.
• *Complete abstinence is defined as complete avoidance of heterosexual intercourse and is an acceptable form of contraception for all study drugs. Acceptable alternate methods of highly effective contraception must be discussed in the event that the subject chooses to forego complete abstinence.